I am working with application for Excel sheets in vb.net.My database is Sql server 2005.I am having around 8 lakhs of rows in my database and 64 columns.when I import a excel sheet for searching the Duplicate of excel sheet rows in database i get this Error System Out of Memory Exception.What is the reason to occur this kind of Error.Is it due to Excess of rows in database or coding error in Application.
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I am using .net 2.0 and I am getting an exception of system is out of memory. My existing function takes datatable as input parameter which contains little bit large data (eg. more than 35000 rows) and in that function I am appending some xml node data and atlast I am returning the stringbuilder as a object.
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I am using a VB script in SSIS Script Task to add header and Trailer to a flat file. The code was working fine until recently i came across a problem where the rows in the file are more than usual and resulting in a failure on script task with error`Error:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
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I'm getting 'Catch' cannot catch type 'Object' because it is not 'System.Exception' or a class that inherits from 'System.Exception'. and 'Expression detected' Code underlined in blue: Catch obj1 As Object When (?)
Private Sub OpenJAMem()
Dim num3 As Integer
Try
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I have a large project where we have 2-3 dll projects that are converted from VB6 to VB.NET. We have fixed all the issues that caused compilation errors, and most of obvious issues in running, so now we have basically a program up and running. The exe is created from scratch in VB.NET, using a lot of functionality from the converted dll's (including GUI forms). What I wonder is when I run the program in debug mode, I get a bunch of warnings in the "Immediate Window" saying:
A first chance exception of type 'System.Exception' occurred in Microsoft.VisualBasic.dll
...and some of other type (but most of them in Microsoft.VisualBasic.dll).I was wondering if this is common in projects converted from VB6, or if it is caused by bad design in our code...
Is there anyway to create a Custom Exception without inheriting System.Exception?
my reason is that they have a lot of methods which i do not wish my Class to have.
I am pretty new to Visual Basic and am only using it to create a very simple programme. It is essentially an interactive encyclopedia where the user can type in a subject into a text box and get a form with information on it to pop up. I am not using any data sets etc. While the forms are all very simple and the code very limited there are dozens of forms involved, this was working fine until recently when I started to run into OutOfMemoryExceptionThrown every time I try to build my program and debug it. This exception started appearing sporadically with the programme sometimes compliling fine and other times refusing to but now it is every time. I have never written code to do this before so how do I got about freeing up memory? I read in a similar post that it may be connected to allocating memory and then not freeing it up again, or perhaps having too many event handlers in my program without ending them, however I am lost and don't know how to fix these problems.
View 17 RepliesI am writing some code to retrieve data from SQL Server, including an image field. I load the retrieved image data into a byte array and then convert the array into an image. Finally, I want to show a thumbnail of the image in a picturebox control on my app's form. All this works perfectly on my dev machine running windows 7, but the following code:
Dim myblankCallback As Image.GetThumbnailImageAbort = New Image.GetThumbnailImageAbort(AddressOf blankCallback)
PictureBox1.Image = newImage.GetThumbnailImage(180, 180, myblankCallback, New
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I always get an out of memory exception with my drawings...I read somewhere that I have to dispose my graphics to diminish the amount of memory used by the system.
I have the onPaint event and in there I call my functions with
Dim g as Graphics = e.Graphics
draw_all(g)
So in fact I have to dispose the e.Graphics every time he has to be repainted. Now my question how can I do that, because when I write before the draw_all function g.Dispose, that doesn't work, because he deletes the declaration of g and he doesn't know anymore what it is. If I dispose it after the draw_all function, he doesn't want to draw either.
I dying trying to resolve this - its got so bad im unable to perform alot of my work. I keep getting an Out of Memory Error exception.
View 17 RepliesI created a TaskBar application in Visual Studio which minimizes itself inside the system tray and show notifications to the user based on the database change. Whenever a new task assigned to the user he will notified at the system tray like a balloon popup. But whenever the applications runs for an average 15 hours time suddenly my applications crashes and shows out of memory exception.How can i debug this issue ? I can't wait for 15 hours and check for this issue? Is there any tool available to check the memory leakage of my application which can directly point at my issue? How can i generate out of memory exception to my program so it will be debugged easily and fast?
View 2 RepliesI got an out of memory exception in a photo editor thingy i was making in vb.net. The bitmap image is constantly changing, and I always Dispose() of it after it has been sent off to the other bitmap. Is it being stored in a temp folder and using up all my space on the computer, or what? It always bugs after about 8 bitmaps have been drawn.
View 2 RepliesI have a form created to act as a signature form. It will be used on an iPad via Citrix and that's not negotiable per my job so please don't make suggestions about developing it with Apple software. Anyway, on to the issue:Since this will be on an iPad I cannot use an OnMouseDown event to handle the drawing with the form. It consists of a PictureBox where the signature will occur. It works fine unless the user gets "draw happy" and starts drawing for a while. After a little time an Out of Memory Exception occurs and the program crashes.[code]
View 13 Replies I have an application that listens for connections asynchronously. When a connection comes in, it spawns a new thread from the callback method. This works fine for up to about 13 simultaneous connections then it dies with an out of memory error. The threads that are spawned just do a CHAP handshake and authenticate then go in to a command loop where they sleep until a command comes in or a timeout occurs. I have pasted the code below. Sometimes it will not throw an error but the thread never gets spawned although the connection is accepted.
Code:
Imports System.Net.Sockets
Imports System.Threading
Public Class UpdateMonitor
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I have the following sub where i am reading in a 250mb file of dictionary words in a list, for example
Aardvark
Because
Count
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As you can see i am wanting to use linq to remove duplicates, and also because i want to use the union and except statments elsewhere.
The above is fine if the filesize is about 150mb but with 250mb it throws a out of memory unhandled exception, on 'sWriter.Writeline(sline).
I am thinking this would need to be inside the loop, but cant work out how include my linq statement also.
i'v got a problem with the Report Viewer form .NET 2008. I'ave to get Some 100000 Records for my company for a year dump report.The problem is i get the OutOfMemory Exception on the design of report.I get only the column i need and i use a Dataset to display.
View 1 RepliesI have a desktop application in vb.net 2003. Here when we load the main screen we find an unhandled exception showing out of memory, but we are able to continue working off the form and retrieving data. It works fine, but the image is not getting loaded.In the main screen we have a background image loaded, one of the images is animated
View 1 RepliesI have some code that uses the Windows Media Player Library capabilities to get around using ID3 tags. I keep getting this error however, whenever I add 1000+ songs to the datagridview:
For Each File_FullPath As String In My.Computer.FileSystem.GetFiles(My.Settings.Path, FileIO.SearchOption.SearchAllSubDirectories, "*.mp3", "*.m4a")
Dim WMP As New WindowsMediaPlayer
WMP.URL = File_FullPath
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Here is the code I'm using that gets the error:The problem is I need a way to clear the WMP.mediaCollection, but I don't know how.
I am using the following piece of code to load images as thumbnails to a FlowLayoutPanel control. Unfortunately i get an OutOfMemory exception.As you already guess the memory leak is found at line
Pedit.Image = System.Drawing.Image.FromStream(fs)
So how could i optimize the following code?
Private Sub LoadImagesCommon(ByVal FlowPanel As FlowLayoutPanel, ByVal fi As FileInfo)
Pedit = New DevExpress.XtraEditors.PictureEdit
Pedit.Width = txtIconsWidth.EditValue
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Update: The problem occurs while loading a number of images (3264x2448px at 300dpi - each image is about 3Mb's)
I am using VS 2008, Office 2007, and Win7 Home Premium on my system.I have a simple application which should be a breeze to build. All I am attempting to do is pull data from an Access database with four small tables into a data grid on a windows project. Should be simple, set up the data connection, choose a datagrid from the table in the data source view, drag it onto the page and done, right?I can't get it to work. It will all work fine until I attempt to run or debug the project. The data will not show up. The data grid does, but I get this error: A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll
As I said, the project seems to build fine, but it will not pull the data. After the initial build I get the message that Windows will show this page in Compatibility View. Is it something with Win7 Home Premium, or a setting somewhere?
I'm using express 2008 build the windows app. and in the app, it calls a webservice which was built by VS2003.It works fine on most PCs. however, there is one PC, it always shows this error:
System.TypeInitializationException: The type initializer for 'System.ServiceModel.ClientBase' 1' threw an exception
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System.configuration.ConfigurationErrorException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException:
Unrecognized configuration section system.serviceModel
.....
however, the configuration file was generated by express 2008, and it seems there is no error.
I would like to create a local user on a windows 7 PC, but gets the following error when commitchanges runs. I am administrator on the PC:
A first chance exception of type 'System.UnauthorizedAccessException' occurred in System.DirectoryServices.dll
Here is my code:
CODE:
I am using Visual Basic 2010 ultimate in Visual Studio 2010.
get out from the below loop
Shared Function GetIPAddress() As String
Dim sam As System.Net.IPAddress
Dim sam1 As String
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I have a program that creates a Treeview from information procured through an ODBC query and dumped into a dataset. I have three such queries set up via radial buttons as well as a refresh button that triggers whatever radial button is active at the time it's clicked. The purpose of this program is to allow drag-and-drop of selected nodes, ending with a post to the database that officially makes that change of assignment to the new node.
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Here is the code I am working with, everything works fine up until last line then i get evaluate exception unhandled "Cannot perform '=' operation on System.Int32 and System.String." My eyes are going blind trying to figure out whats wrong, if I understand correctly it cant count system string and REO is a string value.
The thing i have done this before ,count that is. I know you cant average strings and some other function but i have been able to count.
d Dim comm As New OleDb.OleDbCommand("Select * From " & Me.OpenFileDialog1.SafeFileName & " Where Status <> 'S'", con)
Dim dalist As New OleDbDataAdapter(comm)
Dim comm1 As New OleDbCommand("SELECT * FROM " & Me.OpenFileDialog1.SafeFileName & " Where Status
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When I run my project I get "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll"
Public Class frmViewReport
Dim objForm As New frmViewReport
Private Sub frmViewReport_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
objForm.ViewReport("C:a2.rtp", , "@parameter1=test�mter2=10")
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I have the following code running, the first time I change the selected index, everything runs smoothly. However, if I try to change the selected index again, nothing happens and the subcategories combobox values do not change.
Private Sub cboMainCategory_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboMainCategory.SelectedIndexChanged
'* make sure the combobox is fully loaded
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I keep getting an eroor this error says: An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll Additional information: Specified argument was out of the range of valid values.
Option Strict On
Public Class frmWeeklyReport
Inherits System.Windows.Forms.Form
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A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll It displays in my Immediate Window when i run my program, I'm using a text reader to read a number of XML files using background worker...most the time it stops so something is wrong but sometimes it works fine.
View 2 RepliesI am working on a card game, and i get this werid error:
A first chance exception of type 'System.Reflection.TargetParameterCountException' occurred in System.Windows.Forms.dll
The code that is cousing this error is:
Private Delegate Sub ShowcardDelegate(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
Private Sub Showcard(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
If objtest.InvokeRequired Then
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